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Tips on how to Repair A Light Switch Circuit

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Electrical Question: Three different light switches in three nearby bathroom areas will not work but the switch adjacent to the light switch controlling the fan will work on all but one.

– I checked the GFI box and none were tripped, I even reset all applicable ones.
– I checked the circuit between the switches with a current tester and neither light switch was getting a signal.
– Two of the switches that controlled the fan had a robust signal but considered one of them gave a very weak signal. All electrical outlets in each of the room are fully functional.
– There must be a fuse between all three light switches that has blown and that i don’t have a clue where to search out it.

Any input could be greatly appreciated.

This electrical wiring question came from: Robert, from North Las Vegas, Nevada.

Dave’s Reply:
Thanks for your electrical question Robert.

Repairing Faulty Light Circuit Wiring

Application: Troubleshooting and Testing Light Switch Circuit Wiring.
Skill Level: Intermediate to Advanced, best repaired by a Licensed Local Electrician.
Tools Required: Basic Electricians Pouch Hand Tools and Voltage Tester or Continuity Tester.
Estimated Time: Relies on experience and level of problem solving skills.
Precaution: Testing live wires is dangerous and must be done by an experienced individual only. Testing using a continuity tester should only be made after the circuit has been identified and turned OFF and Tagged.

Several Light Switches Don’t Work

Wireless Black 3 Gang 1 Way Wall Touch Switch For Light 86– From what has been described I don’t believe you will find a fuse problem, however I do believe there’s an issue with an electrical splice or connection which is commonly found either in the switch box or in a fixture box where the facility my be spliced through resulting in the affected areas.
– The electrical wiring and splices within the switch box ought to be inspected for burnt and damaged electrical wiring.
– Necessary electrical repairs and replacing affected wiring should be made to ensure proper connections and circuit integrity.

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